Carbon-sheet.



UNITED sTATEs PATENT oFEioE.,

I PHILIP HANG, 0F NEWl YORK, N. Y. I

'CARBON-SHEET.

specification or Letters Ptent. Patented Aug. 29, 1911. l Applicationiled Aprill, 1911. Serial No. 620,001, v

To all whom it may concern; y

Be it linown that l, PHILir HANO, a citizen of the United States;residingI at New York, in the county of New York and State of New York,have invented new and useful Improvements in Carbon-Sheets, of whichlthe following is a specification.

bon paperl having two or more different colors of carbon.

In the accompanying drawing, Figure 1 is a plan-view of a sheetof carbonpaper embodying my invention. Fig. 2 is a vertical section of thersame.

My improved carbon paper is coa-ted upon one side only with carbonmaterial.

In'Fig. `1 the red portion of the carbon'is Vdesignated by the letter aand the blueor black portion by the letter b.

lhile I have only shown in the illustration a sheet with two colors, Ido not confine myself to 'this and there inn y be two or more colors ona sheet yif desired. And, furthermore, I do not restrict my invention toa4 sheet of carbon paper wherein the portions,

of contrasting color are arran ed in the specific relation shown in theraWing, as the `portions of contrasting color maybe differently arrangedin accordance' with the particular pu ose for. which the vsheet is to beemploye vFor exa1np1e,'if it is .desir-ed. to retain 4a. carbon copy ofa letter whereon the name and residence of-the 'addressee and thesnbjectmatterof the letter shall appear in a color contrasting with themaln portion of the 'letter,' then the upper marginal portion of thesheet willl be of f y contrasting color as compared,` with-v the '50loweronmain portion of the sheet. 4Where 1t .is desired to retain carboncopies of invoices" havlng portions of the invoices -in contrastingcolors as compared with the remaining portions1 the contrasting colorsof theA carbon sheet will be arranged accordingly, and this differencein arrangement may be Varied to accommodate' the particular use to whichthe carbon sheet isY i l carbon sheet may be used to take the impresion, in contrasting colorsgofV a pen cil or other hand imple1nent,' formay: be

' used to take the impression. of a Atype of a typewriting machine. Inboth cases the carbon sheet will be made 'use'of'in-just the manner inwhich carbon sheets of solid" or one color are now utilized.' n

The sheet of carbon paper is adapted to be insertedbetween two sheets ofwriting say, throughout the operation of writing upon 'the top sheet ofpaper, the three sheets, name1y,'thel two sheets of writing paper andtheinterposed'carbon sheet main# i tain a fixed relative position.

I claim: f j- As ,a new article of manufacture a multicolored sheet o fcarbon paper adapted to l 80v be interposed between two sheets ofwriting s paper in fixed relation 'thereto, substantially as described.'

.fn testimony whereof I Ahave hereunto set r i my hand in the presenceof twoV subscribing witnesses. i

i .PHILIP HANQ:4 Witnesses: V

' WARLAND, y CHRISTIAN H. ALMs'rAnD'r.

paper in fixed relation thereto, that is to

